Henry l



i fdibdirll INDIANA., AssI'cNon'ro o. A. GREEN. EDWIN J. Pneu, or SAME` PLACE,

HENRY L IAnn or` INDIANAPOLIS, LEAN, J. L, Moruessn'ssn, AND

Letters Patent No. 99,659, dated February 8, 187 0.

4IMPRtrvnznzarrr 1N SECTIQNAL FLY-WHEELS.

The Schedinereferred to in these Letters Patent and mailing part. Q! the sa'mevI', HENRY L. FARR, of Indianapolis, in the county ofMar-ion, and State of Indiana, have invented an Improved Sectional Fly-Wheel, of which the following is n. specification.`

. My invention relates to the construction of a castiron ily-wheel or pulley, in two or more radial sections,

forming sectors, united at the rim in tbe usual manner, by `keys and stirrups, or by overlapping joints, and centrally by a. transverse splice through thehub, produced by m'eans of opposite projections, either of a circular" or anuularform, to embrace the shaft completely where the wheel is in twov parts, or in the form of sectors, tofembrace it partially, where there' are more thanv two divisions, lthese projeeticusbeingnade l each to overlap and cover the adjacent central portion of the next division of ,the wheel, and be'seeured'by means of bolts passing transversely through the same. The object of my invention is to producea ily-wheel ,which may be cast in sectiousfand readily put together -diivsious separated.

Figure 4, a similar `section, through the line :c x of iig. l, illustrating the same united on the shaft.

Figure 5, an elevation of two sections of'a wheel, made in four divisions, when they are properly brought together, the remaining two sections being illustrated by dotted lines, representing them properly placed and secured, to complete the wheel. v Y. A A are the divisions of my improved {ly-wheel, made in two parts;

i b b, (fig. 3,) being the divisions or halves ot its een tral plate or hub;

c c, its spokes; and e D, (figs. 1 'and 4,) the shaft upon which it is secured. The faces of' the two joints or divisions in the rim ofthe wheel are recessed or mortised on one side, to receive each a tongue or link, E, secured or formed so as to project from the opposite face ofthe joint, and

chic-'n is caught and heid in the mortise when the join? s are properly closed by a transverse key or pin, 8 fr0; ,1.

7 Trlie two divisions b b, Aof the central plate'or hub of the wheel, are Veach cast with Yan onter`portion,`B,.

formed thereon, exteriorly thereto,`in one piece there?Y with, but extending beyond the` same, in e, coincident plane, far enough to forman undividedA hub or annu: lar bearing furthe shaft, continuons with thefdivided bea-ring ofthe division from which 'it projects, as llusy trated in fig. 3; t

These exterior portions 4B B, by .their projections, each overlap-the central part b of the opposite section ofthe wheel, when the two sections are united, and a splice is thus'formed, through which the shaft passes es a key, and which;- may be lirrnly and solidly clamped and secured by bolts R, passing through from side to side,4 parallel withthe shaft, as iliustrated in dg 4.

As a portion of the hub in each 'section of the-wheel completely encireles the shaft, there is but little strain on the transverse bolts, and the wheel is as strong,

when united, as if cast In one solid piece.

By withdrawing the bolts R, uniting the divisions of thehub, and the keys s, securing the joints in the rirn of the wheel, the two sections are readily separated for transportation.

The joints at the 1'in1,.instead 0"." being secured by a mortise and tenon, as illustrated, may be formed to overlap, and form a splice, to be held and secured by transverse bolt-s.v v

Where it is desirableto constructthe wheel in more than two sections, the projecting portions of the hub-` plate on each section are made to forni sectors of a cir'- ole, embracing the' shaft, as illustrated bythe positive lines at l K, fig. 5. 'M

In this drawing, the wheel is shown divided iutofour sections, the sectors K of the hub-plates being, in such case, made to include ea'ch half of a circle. With wheels so divided, the splice at the hub is strengthened by separate outer face-plates or rings, through which the transverse hstening-bolts project.

I claim, as my invention- A ily-wheel or pulley, constructed of two ormore sections or radial divisions, combined and united at centre and circumference, substantially as herein described.

., Witness my hand to said spccication, this 17th day of December, A. D. 1869. HENRY L. FARB.

Witnesses: i

J. L. MOTHERSHEAD, Apex. RARIG; 

